The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 2021
Filed:
Dec. 02, 2019
Applicant:
Kantatsu Co., Ltd., Yaita, JP;
Inventor:
Yukio Sekine, Sukagawa, JP;
Assignee:
KANTATSU CO., LTD., Tochigi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/18 (2006.01); G02B 9/62 (2006.01); G02B 13/00 (2006.01); G02B 3/04 (2006.01); G02B 9/64 (2006.01); G02B 3/02 (2006.01); G02B 27/00 (2006.01); G02B 5/20 (2006.01);
U.S. Cl.
CPC ...
G02B 13/006 (2013.01); G02B 3/02 (2013.01); G02B 3/04 (2013.01); G02B 5/208 (2013.01); G02B 9/64 (2013.01); G02B 13/0045 (2013.01); G02B 27/0025 (2013.01);
Abstract
An imaging lens which uses a larger number of constituent lenses for higher performance and features a low F-value, low-profile design and a wide field of view. Designed for a solid-state image sensor, the imaging lens includes constituent lenses arranged in order from an object side to an image side: a first positive refractive power lens; a second negative refractive power lens; a third lens; a fourth lens; a fifth lens; a sixth lens having a concave image-side surface near an optical axis; and a seventh negative refractive power lens.